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单词	boon
释义	boon 1 (bn) n. 1. A benefit bestowed, especially one bestowed in response to a request. 2. A timely blessing or benefit: A brisk breeze is a boon to sailors. [Middle English bone, from Old Norse bōn, prayer; see bhā-2 in the Appendix of Indo-European roots.]
随便看	second of arc Secondo Tranquillo. second person second-person second quantum number second-rate second-rateness second-rater second sight second-story man second-strike second string second-string second-stringer second thought second wind Second World Second-World Second World War secrecy secret secreta secretagogue secretarial secretariat

英语词典包含135693条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。